Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c14.3

v2.c14.3

That science is called Horā Śāstra or Jātaka (Natal Astrology) which decides what happiness or misery would fall to the lot of the native during his life, from a consideration of the planets in the ascendant at birth or in different positions from the ascendant or in the positions in relation to the moon’s sign at birth, or from a consideration of the tithi, nakṣatra etc. at the time of birth or, in short, from the planetary positions at the time of birth. There is a subsection of astrology which is known as the Tājika’. It will be discussed later on. The author first describes the science of astrology in brief.